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Abstract #2704

Recurrent reconstruction network enables real-time and high-resolution PRF thermometry for LITT

Yuancheng Jiang1, Ziyi Pan1, Kai Zhang2, Meng Han3, Wenbo Liu3, Guangzhi Wang4, and Hua Guo1
1Center for Biomedical Imaging Research, Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China, 2Beijing Tiantan Hospital, Capital Medical University, Beijing, China, 3Sinovation Medical, Beijing, China, 4Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, China

Synopsis

Keywords: Thermometry/Thermotherapy, Thermometry

Motivation: Proton-resonance-frequency (PRF) shift-based thermometry is used to monitor the temperature change during Laser-interstitial-thermal-therapy (LITT). Recent LITT developments call for PRF thermometry to achieve larger volume coverage and higher spatiotemporal resolution for enhanced therapeutic efficacy.

Goal(s): Accelerate the PRF thermometry by compressed-sensing (CS) undersampling to enlarge the volume coverage and increase the spatiotemporal resolution. Use a neural network for real-time reconstruction of the undersampled data.

Approach: A recurrent reconstruction network (RRN) was proposed to reconstruct the highly undersampled PRF data. Retrospective and prospective undersampling experiments were conducted.

Results: RRN demonstrated good image reconstruction quality in retrospective experiments, with promising results in prospective experiments.

Impact: The introduction of the RRN offers a solution for real-time and high-resolution PRF thermometry during LITT, potentially improving treatment outcomes.

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